Results 21 to 30 of about 225,573 (166)
An active contour model for texture image segmentation using Rényi divergence measure
Mathematical Modelling and Analysis, 2022 This paper proposes an efficient method for active unsupervised texture segmentation. A new descriptor for texture features extractions based on Gaussian and mean curvature is constructed.
Sidi Yassine Idrissi
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The Optimal Shape of a Javelin
Studies in Applied Mathematics, 2005 The problem of finding the optimal tapering of a free (nonsupported) javelin is described and solved. For the optimal javelin, the lowest mode of vibration has the highest possible frequency. With this tapering inner damping will lead to the cessation of the vibration at the fastest possible rate.
Farjoun, Yossi, Neu, John
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On the design of membranes with increasing fundamental frequency
Revista de Matemática: Teoría y Aplicaciones, 2014 By means of a relaxation approach, we study the shape design of a stiff inclusion with given area in a membrane in order to maximize its fun- damental frequency.
Raúl B. González De Paz
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Optimal Design of Block Quay Walls
Frontiers in Built Environment, 2020 Block walls, consisting of stacked unreinforced prefabricated concrete blocks, are commonly used for the construction of quay walls in the presence of rocky subgrades.
Stijn Francois +4 more
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Shape Optimization of a Shell in Comsol Multiphysics
Computation, 2022 Optimization calculations are currently an actual and in-demand direction of computer-aided design. It allows not only the identification of the future characteristics of an object, but also the implementation of its exact model using a set of various ...
Evgenia Ermakova +2 more
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Mathematics, 2022 The manta ray foraging optimizer (MRFO) is a novel nature-inspired optimization algorithm that simulates the foraging strategy and behavior of manta ray groups, i.e., chain, spiral, and somersault foraging.
Jianwei Yang +3 more
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Shape optimization of microlenses
Optics Express, 2015 Microlenses are highly attractive for optical applications such as super resolution and photonic nanojets, but their design is more demanding than the one of larger lenses because resonance effects play an important role, which forces one to perform a full wave analysis.
A, Paganini +3 more
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Shape optimization of multi-degree-of-freedom wave energy converter using genetic algorithm
Zhongguo Jianchuan Yanjiu, 2022 ObjectiveIn order to optimize the shape of the floating buoy of a multi-degree-of-freedom wave energy converter to improve its energy conversion efficiency, a method for shape optimization based on a genetic algorithm (GA) is proposed.
Ming TAN +5 more
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Thermo-fluid dynamic design optimization of a concentric tube heat exchanger
Journal of Fluid Science and Technology, 2019 This study proposes a shape optimization approach for the cross-sectional shape of the inner pipe of a counterflow concentric tube heat exchanger. The cross-sectional shape of the inner pipe is expressed by an algebraic expression with a small number of ...
Tomohiro HIRANO +3 more
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A Linearization Technique for Optimal Design of the Damping Set with Internal Dissipation [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2016 Considering a damped wave system defined on a two-dimensional domain, with a dissipative term localized in an unknown subset with an unknown damping parameter, we address the shape design ill-posed problem which consists of optimizing the shape of
Alireza Fakharzadeh Jahromi +2 more
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